As far as I can tell, Chloe is the least popular wpod girl among quite a lot Dom players. I think everyone has their own reasons to dislike her. Some might remember what that bitch did to Kane on the sub route (at least it was hinted at by the sub players, I don't know the details).
Some just don't like bitches like that who don't show their best side (the scene in the crystal mines). Some don't like her looks, although I think Chloe is beautiful. At least her twin sister Justine in the sex scene with Seth (at Astrid's lab on the Island4) I really liked.
However, I don't see Chloe as a “trustworthy assistant” that Z+ Kane could use in the future. She doesn't seem to have any special intelligence or intellectual talents, but her bitchiness, her attempts to appear bossy and overpower those weaker than her, and in the last few months her cheeky smile that never leaves her face, as if she's the one fucking DomKane, not the other way around...All in all, none of this adds to her points in my eyes.
My ranking of the Wpod girls in terms of usefulness/physical attractiveness is now simple:
1st place is Angelica, 2nd place is Kelly, 3rd is Amy (this beauty doesn't need to try too hard, her cute look and doe eyes work great and any man would want to protect this girl from any trouble first

), 4th is Chloe.